Atriotomy button and implantation device

• US 4,423,730 A
• Filed: 03/01/1982
• Issued: 01/03/1984
• Est. Priority Date: 03/01/1982
• Status: Expired due to Fees

• Current Assignee: Shelhigh, Inc.
• Original Assignee: Shelhigh, Inc.
• Inventors: Gabbay, Shlomo
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): Lester, Michelle N.
• Application Number:
  US06/353,343
• Time in Patent Office: 673 Days
• Field of Search: 128/347, 128/330, 128/214 R, 128/334 C, 128/334 R, 128/1 R, 128/303 R, 128/305.3, 3/1.5, 24/19, 24/278, 604/49, 604/93, 604/4, 604/174, 604/175, 604/280, 604/283, 604/27, 604/164
• US Class Current: 604/175
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 90/00 Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges protective face masks A41D13/11; surgeon's or patient's gowns or dresses A41D13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M1/00

Abstract

A device and procedure are provided which enable the attachment of a hollow cylindrical atriotomy button to, for example, the atrial appendage. The inventive device, which carries on its end the inner portion of an atriotomy button, is inserted through an incision in the hollow organ. When the device is triggered, the outer portion of the atriotomy button is forced over the inner portion. Sharp points, which are formed on the edge of the inner section, grasp and guide the walls of the incision during the operation of the device so that the walls are effectively clamped between the two button portions. After the button is in place, a cannula can be inserted into the heart through the access button or attached to the outer surface of the outer button portion.

Claims

1. Atriotomy button comprising a metal ring having a plurality of forwardly longitudinally extending circumferentially spaced pointed extensions, and a collar having a plurality of longitudinally extending circumferentially spaced flexible extensions radially spaced outwardly from and directed toward the extensions on said ring, the inner diameter of that portion of the collar extending toward the metal ring being sufficiently larger than the outer diameter of the pointed extensions on said ring so that a substance grasped by said pointed extensions may be firmly held between said ring and collar when the ring is moved into and within the said collar.

2. Atriotomy button according to claim 1, in combination with a soft compressible collar attached to the first collar on the side opposite said flexible extensions, and means for inwardly compressing said compressible collar.

3. Cannulation device comprising a metallic ring section having sharp longitudinally extending projections, a collar section having circumferentially spaced flexible extensions having an internal diameter greater than the external diameter of said ring, means mounting said collar spaced from and coaxially with said ring with the flexible extensions of the collar facing the sharp projections from said ring, means detachably connected to said ring section for moving the same through an incision of a hollow organ to be cannulated with the projections of said ring contacting the inner walls of the incision, said means including further means pulling said ring and the contacted walls of the incision within the flexible extensions on said collar, whereby the said walls are clamped in a hollow atriotomy button formed by the outer surface of said ring and the inner surface of said flexible extension.

4. Cannulation device comprising a tool having a casing supporting a hollow shaft protruding therefrom, said shaft having two protruding sections of increasingly small external diameter, a hollow cylindrical member surrounding the protruding portions of said shaft, said member having an internal diameter substantially greater than that portion of the shaft which it surrounds and having a partially closed section at one end having an internal diameter substantially equal to the external diameter of the larger protruding section of the shaft, the other end of said member extending substantially beyond the end of said shaft, a rod slidably mounted within said hollow shaft, said rod being of such length that in its extended position its end projects substantially beyond the open end of said cylindrical member, a longitudinally extending nose piece adapted to be attached to the projecting end of said rod, said nose piece having a first end section on the end of the rod having an organ-penetrating section followed rearwardly by a first cylindrical portion having an external diameter less than the internal diameter of said cylindrical member, an intermediate portion of gradually decreasing then abruptly increasing outer diameter, and an internal diameter substantially equal to the outer diameter of the smaller protruding section of said shaft, and a second cylindrical portion having an external diameter substantially equal to the external diameter of said first cylindrical portion and an internal diameter substantially equal to the external diameter of the larger protruding section of said shaft, a ring mounted on the first cylindrical portion of said nose piece, said ring having sharp projections extending longitudinally rearwardly therefrom, detachable means preventing forward longitudinal movement of said ring on said first cylindrical portion, and a collar slidably mounted on the second cylindrical portion of said nose piece in abutting relationship with the open end of said hollow cylindrical member, said collar having circumferentially spaced forwardly extending flexible projections having an internal diameter greater than the external diameter of said ring, whereby when the nose piece of said tool is moved behind the incised wall of a hollow organ and then withdrawn, the projections on said ring pull the edges of the incision with the flexible projections of said collar with the end of the smaller section of said shaft abutting the inside of said nose piece, whereby further rearward movement of said rod actuates said detachable means to permit complete withdrawal of the tool, leaving the wall of the hollow organ clamped within the periphery of a hollow atriotomy button formed by the force fit of said ring with said flexible projections.

5. Cannulation device according to claim 4, in which the end of said rod within said nose piece has an opening therethrough, and said detachable means comprises a bendable wire mounted in said opening.